import requests
import re
URLs = [  "http://mskt.hner.cn/10.html",   #高一
          "http://mskt.hner.cn/11.html",   #高二
          "http://mskt.hner.cn/12.html",   #高三  
       ]
def DownloadURL(URL):
    r = requests.get(URL)
    result = re.findall(".*./vhtml/(.*).html.*",r.text)  #使用正则表达式搜索需要的字符串
    for i in result:
        url = "http://mskt.hner.cn/v/"+i+'.mp4' 
        print(url)
for URL in URLs:
	DownloadURL(URL)